package cn.edu.scau.cmi.qiuyaohua.client;

public class Adapt_DC_15V extends AC_220V implements DC_15V {
    public String display_DC_15V(){
        return display_AC_220V()+caozuo()+"这是15V直流电\n";
    }
    private String caozuo(){
        return "下面是降压和整流操作\n";
    }
}
